Electromagnetic braking device for rail car

The invention discloses an electromagnetic braking device for a rail car. The electromagnetic braking device for the rail car comprises a friction head, a push rod for transferring pushing force, an electromagnet, a power source controller and a spring device, wherein the electrified electromagnet drives the push rod to move, and the power source controller provides electric energy for the electromagnet and in circuit connection with the electromagnet which is arranged on the outer periphery of the push rod. The friction head is arranged at one end of the push rod, and the spring device is arranged at the other end of the push rod. The electromagnetic braking device for the rail car is simple in structure, functions of spring pressurizing brake after outage and electromagnet attraction and release brake after electrification are realized by means of direct alternating-current driving, and the technical problems of high manufacturing requirement, high cost, proneness to fault and complexity in system equipment